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MHT CET202013 Oct 2020Evening ShiftPhysicsSemiconductorsActual

In an oscillator, if ' ^ is the feedback factor and 'A' is the gain of amplifier then sustained oscillations are obtained when

Options

  1. AA =1
  2. BA < 1
  3. CA =1 .
  4. DA >1

Correct answer

C. A =1 .

Step-by-step solution

For sustained oscillations, the condition known as Barkhausen criterion to be satisfied is | KA _ v |=1

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